From 3e61bf9963d7e98e8152d2eacfc4461d8cda309c Mon Sep 17 00:00:00 2001
From: Vishvananda Ishaya <vishvananda@gmail.com>
Date: Wed, 9 Mar 2011 21:43:35 +0000
Subject: remove the semaphore when there is no one waiting on it

---
 nova/virt/libvirt_conn.py | 2 ++
 1 file changed, 2 insertions(+)

(limited to 'nova/virt')

diff --git a/nova/virt/libvirt_conn.py b/nova/virt/libvirt_conn.py
index ecef7950a..69249ed57 100644
--- a/nova/virt/libvirt_conn.py
+++ b/nova/virt/libvirt_conn.py
@@ -539,6 +539,8 @@ class LibvirtConnection(object):
             with LibvirtConnection._image_sems[fname]:
                 if not os.path.exists(base):
                     fn(target=base, *args, **kwargs)
+            if not LibvirtConnection._image_sems[fname].locked():
+                del LibvirtConnection._image_sems[fname]
 
             if cow:
                 utils.execute('qemu-img create -f qcow2 -o '
-- 
cgit